The aim of this work is to investigate common-rail injector behavior towards multiple injection strategies. A numerical model has been developed to simulate the electro-fluid-mechanic behavior of a Bosch mass production injector (standard injector) and validation against experiments has been performed. In order to make the injector performing multiple injections, a deep investigation has been numerically carried out. The numerical study highlighted different areas where injector may be improved with particular emphasis on electronic driving circuit. A new driving circuit concept, previously developed, has been successfully simulated showing promising fast-response capability for injector actuation.

Development of dynamic model for studying the 1st generation of common-rail injectors for HSDI diesel engines / G. M., Bianchi; S., Falfari; F., Filicori; Milani, Massimo; P., Pelloni. - STAMPA. - --(2001), pp. -----. ((Intervento presentato al convegno SAE 2001 ICE Conference tenutosi a Capri, Italy nel 12-17 September, 2001.

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